Uv sterilization system and device and related methods

ABSTRACT

An UV sterilization device includes a housing defining a cavity, a tray carried within the cavity and configured to receive a device, the device including an RFID tag, and an NFC device configured to communicate with the device when external to the cavity and unlock a door when the device is authorized, and a UV CBA carried within the cavity adjacent the tray and having LED UV sources configured to irradiate the device with UV radiation. The UV sterilization device also may include an RF transmitter configured to energize the RFID tag, and a controller coupled to the RF transmitter. The controller may be configured to determine a position and a number of the device based upon the RF signal from the RFID tag, and selectively power the UV CBA for disinfecting the device based upon the identification of the device.

RELATED APPLICATION

This application is a continuation of application Ser. No. 16/846,550filed Apr. 13, 2020, which is a divisional of application Ser. No.15/898,930 filed Feb. 19, 2018, now U.S. Pat. No. 11,058,783, whichclaims priority to Application No. 62/460,516 filed Feb. 17, 2017, andApplication No. 62/460,347 filed Feb. 17, 2017, the entire subjectmatter of these applications is incorporated herein by reference in itsentirety.

TECHNICAL FIELD

The present disclosure relates to the field of medical devices, and,more particularly, to sterilization device and related methods.

BACKGROUND

Health care facilities, such as hospitals, are under increasingfinancial pressure due to the global economic downturn. Thedetermination of the federal and state payers to reduce health carepayments, and the trend of private insurers to move their insured tohigh deductible plans. Also, government payment strategies now includereductions in payments for failures to achieve certain outcome andquality targets, a move that private insurers are sure to follow.

Infection controls is an increasingly important aspect of quality athealth care facilities. Several approaches to maintaining the sterilefield and sterilizing anything that comes in to contact with patienthave been disclosed. For example, health care facilities have institutedrigorous hand washing and sterilization procedures, such as requiringhand sanitizer and hand washing before and after interacting with apatient.

As mobile device technology has permeated every aspect of society, inmost health care facilities, many personnel carry one or more mobiledevices. For example, a user may carry a typical voice communicationshandset for voice calls, and a tablet/laptop computing device foraccessing patient records wirelessly. Of course, since these devices goeverywhere the user goes, they accumulate biological contaminants andmust be sterilized from time to time.

SUMMARY

Generally, an ultraviolet (UV) sterilization system comprises a servercomprising a processor and memory coupled thereto, and at least one UVsterilization device. The at least one UV sterilization device maycomprise a housing defining a cavity therein, and having a doorconfigured to permit access to the cavity, at least one tray carriedwithin the cavity configured to receive at least one device, the atleast one device including a radio frequency (RF) identification (ID)tag, and a near field communications (NFC) device configured tocommunicate with the at least one device when external to the cavity andunlock the door when the at least one device is authorized. The at leastone UV sterilization device may comprise at least one UV circuit boardassembly (CBA) carried within the cavity adjacent the at least one trayand comprising a plurality of light emitting diode ultraviolet (LED UV)sources configured to irradiate the at least one device with UVradiation, a transceiver configured to communicate with the server, atleast one RF transmitter configured to energize the RFID tag, and acontroller coupled to the at least one RF transmitter. The controller isconfigured to identify the at least one device based upon an RF signalfrom the RFID tag, determine a position and a number of the at least onedevice based upon the RF signal from the RFID tag, selectively power theat least one UV CBA for disinfecting the at least one device based uponthe identification of the at least one device, and send at least onestatus message to the server.

In some embodiments, each tray may comprise a material (e.g. quartz)transparent to UV radiation. The controller may be configured toselectively power the at least one UV CBA when the at least one deviceis detected on a respective tray. The at least one UV sterilizationdevice may comprise a keypad carried on an external surface of thehousing and coupled to the controller, and the controller may beconfigured to unlock the door based upon a code received from thekeypad.

The UV sterilization system may further comprise a wireless basestation, and the transceiver may comprise a wireless transceiver coupledto the controller and configured to communicate with the wireless basestation. The at least one UV sterilization device may comprise apositive air pressure source carried by the housing and configured tocreate positive air pressure in the cavity when the door is open. The atleast one UV CBA may comprise a circuit board carrying the plurality ofLED UV sources.

Also, the at least one UV sterilization device may comprise a lightlouver carried by the housing and configured to permit air to flow outof the cavity. The light louver may comprise a plurality ofinterdigitated arms. The plurality of LED UV sources may be configuredto perform 360 degree irradiation of the at least one device.

Another aspect is directed to an UV sterilization device comprising ahousing defining a cavity therein, and having a door configured topermit access to the cavity. The UV sterilization device also mayinclude at least one tray carried within the cavity and configured toreceive at least one device, the at least one device including an RFIDtag, and an NFC device configured to communicate with the at least onedevice when external to the cavity and unlock the door when the at leastone device is authorized, and at least one UV CBA carried within thecavity adjacent the at least one tray and comprising a plurality of LEDUV sources configured to irradiate the at least one device with UVradiation. The UV sterilization device also may include at least one RFtransmitter configured to energize the RFID tag, and a controllercoupled to the at least one RF transmitter. The controller may beconfigured to identify the at least one device based upon an RF signalfrom the RFID tag, determine a position and a number of the at least onedevice based upon the RF signal from the RFID tag, and selectively powerthe at least one UV CBA for disinfecting the at least one device basedupon the identification of the at least one device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1-3 are schematic diagrams of varying embodiments of the UVsterilization system, according to the present disclosure.

FIGS. 4-5 are diagrams of illustrating structure of the UV sterilizationsystem, according to the present disclosure.

FIGS. 6 and 7 are perspective front and back views of a UV sterilizationdevice, according to the present disclosure.

FIG. 8 is a front elevational view of the UV sterilization device ofFIGS. 6-7.

FIG. 9 is a partial front perspective view of the UV sterilizationdevice of FIGS. 6-7 with the door removed.

FIG. 10 is a section view of the UV sterilization device of FIGS. 6-7.

FIGS. 11-13 are perspective and top plan elevational views of UB circuitboards from the UV sterilization device of FIGS. 6-7.

FIG. 14 is a perspective view of a UV CBA from the UV sterilizationdevice of FIGS. 6-7.

FIG. 15 is a section view of a light louver from the UV sterilizationdevice of FIGS. 6-7.

FIG. 16 is a partial front elevational view of the UV sterilizationdevice of FIGS. 6-7.

FIG. 17 is a back plant elevational view of the UV sterilization deviceof FIGS. 6-7.

FIGS. 18-19 are partial front perspective views of the UV sterilizationdevice of FIGS. 6-7.

FIGS. 20A-20B are top plan elevational views of UB circuit boards fromthe UV sterilization device of FIGS. 6-7.

FIGS. 21-22 are a flowchart for operation of the UV sterilization deviceof FIGS. 6-7.

FIGS. 23-24 are flowcharts for operation of the UV sterilization deviceof FIGS. 6-7.

FIG. 25 is a schematic diagram of a UV sterilization device, accordingto the present disclosure.

FIG. 26 is a schematic diagram of a UV sterilization device, accordingto the present disclosure.

FIG. 27 is a diagram showing UV LED aging in an embodiment of the UVsterilization device, according to the present disclosure.

FIGS. 28A-28M are images of circuit board layers for the backplane CBAin the UV sterilization device of FIGS. 6-7.

FIGS. 29A-29I are images of circuit board layers for the display in theUV sterilization device of FIGS. 6-7.

FIGS. 30A-30B are images of circuit board layers for the UV CBAs in theUV sterilization device of FIGS. 6-7.

FIGS. 31-33F are circuit diagrams for the controller in an embodiment ofthe UV sterilization device, according to the present disclosure.

FIGS. 34A-34C are a circuit diagram for power for the controller in anembodiment of the UV sterilization device, according to the presentdisclosure.

FIGS. 35A-35C are a circuit diagram for the Ethernet connection in anembodiment of the UV sterilization device, according to the presentdisclosure.

FIGS. 36A-36B are a circuit diagram for the power supplies in anembodiment of the UV sterilization device, according to the presentdisclosure.

FIG. 37 is a circuit diagram for the detector circuits in an embodimentof the UV sterilization device, according to the present disclosure.

FIGS. 38A-38C are a circuit diagram for the RFID detection in anembodiment of the UV sterilization device, according to the presentdisclosure.

FIGS. 39A-39F are a circuit diagram for the UV LED drivers in anembodiment of the UV sterilization device, according to the presentdisclosure.

FIG. 40 is a circuit diagram for the wireless transceiver in anembodiment of the UV sterilization device, according to the presentdisclosure.

FIG. 41 is a schematic diagram for the flexible connector for thedisplay in an embodiment of the UV sterilization device, according tothe present disclosure.

FIGS. 42A-42C are schematic diagrams for the antenna and coaxialconnector in an embodiment of the UV sterilization device, according tothe present disclosure.

FIG. 43 is several views of the wireless transceiver in an embodiment ofthe UV sterilization device, according to the present disclosure.

FIGS. 44A-44B are schematic diagrams for the antenna and coaxialconnector in an embodiment of the UV sterilization device, according tothe present disclosure.

FIG. 45 is a schematic diagram of another embodiment of the UVsterilization system, according to the present disclosure.

DETAILED DESCRIPTION

The present disclosure will now be described more fully hereinafter withreference to the accompanying drawings, in which several embodiments ofthe invention are shown. This present disclosure may, however, beembodied in many different forms and should not be construed as limitedto the embodiments set forth herein. Rather, these embodiments areprovided so that this disclosure will be thorough and complete, and willfully convey the scope of the present disclosure to those skilled in theart. Like numbers refer to like elements throughout, and base 100reference numerals are used to indicate similar elements in alternativeembodiments.

Referring initially to FIGS. 1 and 6-20B, a UV sterilization system 100according to the present disclosure is now described. The UVsterilization system 100 illustratively includes a server 111 comprisinga processor and memory coupled thereto, and a plurality of UVsterilization devices 101 a-101 d.

In this illustrated embodiment, the server 111 illustratively includes asupport/maintenance provider 109 coupled to the Internet 105, a ticketsystem 110 coupled to the support/maintenance provider, a support portal108, a firewall 107 coupled between the Internet and the support portal,a hospital firewall 106 coupled to the Internet, a router 104 coupled tothe hospital firewall, a switch 103 coupled to the router, a wirelessbase station 102 coupled to the switch, and the plurality of UVsterilization devices 101 a-101 d coupled to one or more of the switchor the wireless base station. In other embodiments, the server 111 maybe coupled to a local area network, serving only local clients.

Each UV sterilization device 101 a-101 d illustratively includes ahousing 120 defining a cavity therein, and having a door 121 configuredto permit access to the cavity. Each UV sterilization device 101 a-101 dillustratively includes a plurality of trays 131 a-131 d carried withinthe cavity, each tray configured to receive at least one mobile wirelesscommunications device.

Each UV sterilization device 101 a-101 d illustratively includes aplurality of UV CBAs 125 a-125 d carried within the cavity respectivelyadjacent the plurality of trays 131 a-131 d. Each UV CBA 125 a-125 dillustratively includes a plurality of LED UV sources 135 a-1351, 139a-139 e configured to irradiate the at least one mobile wirelesscommunications device with UV radiation. Each of the plurality of trays131 a-131 d comprises a plurality of device bays for receiving devicesof varying sizes and configurations (e.g. cell phones, tablets,laptops). As will be appreciated, the UV irradiation eliminatesmicrobial contamination on the at least one mobile wirelesscommunications device, i.e. effecting a disinfection or sanitizingprocess.

Each UV sterilization device 101 a-101 d illustratively includes atransceiver (e.g. WiFi, Bluetooth, ZigBee, cellular) 153 configured tocommunicate with the server 111, and a controller 144 configured toselectively power at least one of the plurality of UV CBAs 125 a-125 dfor disinfecting the at least one mobile wireless communications device,and send at least one status message to the server. The server 111 isconfigured to contact respective users via e-mail or short messageservice (SMS) messages when needed. Advantageously, the UV sterilizationdevice 101 a-101 d is more power efficient since unused trays 131 a-131d are not irradiated.

Each tray 131 a-131 d comprises a material transparent to UV radiation.For example, the material comprises quartz. Indeed, since the pluralityof LED UV sources 135 a-1351 have a narrow emission spectrum, thematerial need only be transparent to the emission spectrum and not theentire UV band. Helpfully, since there are no UV shadows on the device,this permits for 360 degree irradiation of the at least one mobilewireless communications device.

The server 111 is be configured to provide a web interface portal foraccessing respective status information for the plurality of UVsterilization devices 101 a-101 d. The at least one mobile wirelesscommunications device includes an RFID tag. The UV sterilization device101 a-101 d illustratively includes an RF transmitter (e.g. an ultrahigh frequency (UHF) transmitter) 115 coupled to the controller 144 andconfigured to energize the RFID tag. The controller 144 is configured toidentify the at least one mobile wireless communications device basedupon an RF signal from the RFID tag. The controller 144 is configured toselectively power the at least one of the plurality of UV CBAs 125 a-125d when the at least one mobile wireless communications device isdetected on a respective tray. In these embodiments, each mobilewireless communications device would have a passive RFID tag, forexample, an adhesive backed RFID tag.

Advantageously, the RF transmitter 115 is configured to operate in aclosed loop system, and segregates device bays in each tray 131 a-13 dinto an RF zone to solve for device orientation and placement. In fact,some embodiments may include a plurality of RF transmitters, which areactivated in sequence based upon the detected placement and number ofmobile wireless communications devices within the cavity. In theseembodiments, the plurality of RF transmitters may operate with circularpolarization.

Also, this identification feature permits the UV sterilization device101 a-101 d to maintain an accurate real-time inventory of the mobilewireless communications devices within the plurality of trays 131 a-13d. This may aid in providing for reduction of device theft and loss.Further, the disinfection status and frequency of each mobile wirelesscommunications device is monitored and reported back to the server 111.

The UV sterilization device 101 a-101 d may further comprise a keypadcarried on an external surface of the housing 120 and coupled to thecontroller 144. The controller 144 is configured to unlock the door 121based upon a code received from the keypad. Since each user has a uniquecode to open the door 121, the UV sterilization device 101 a-101 d cankeep track of which user opened the door and verify the proper devicewas removed. Indeed, if the wrong device is removed, the UVsterilization device 101 a-101 d may cause the server 111 to send anotification to the user.

In other embodiments, the UV sterilization device 101 a-101 d mayfurther comprise a near field communications (NFC) device configured tocommunicate with the mobile wireless communications device. Helpfully,the NFC device would be accessible from the exterior of the UVsterilization device 101 a-101 d and permit the user to tap the mobilewireless communications device for access. In other words, the UVsterilization device 101 a-101 d may identify the mobile wireless deviceand open the door 121 when the NFC device detects an authorized device.

The UV sterilization device 101 a-101 d may further comprise a chargingport (e.g. universal serial bus) carried within the cavity andconfigured to charge the at least one mobile wireless communicationsdevice. Also, in the cavity, the housing 120 comprises a plurality ofcable management devices for reducing potential UV shadow of chargingcables.

Helpfully, the UV sterilization device 101 a-101 d use of LED UV lightsources creates less waste infrared (IR), i.e. heat, energy, keeping theat least one mobile wireless communications device at a lowertemperature during the disinfection process. In prior approaches thatused incandescent UV sources, the at least one mobile wirelesscommunications device would be heated with waste IR energy, makingsimultaneous charging undesirable or impossible.

The housing 120 comprises opposing front and back sides, the front sidedefining the door 121. The UV sterilization device 101 a-101 d mayfurther comprise a backplane CBA 130 carried by the back side andconfigured to receive and power the plurality of UV CBAs 125 a-125 d. Infact, the plurality of UV CBAs 125 a-125 d are readily removable andcoupled to the backplane CBA via a slot connection. In the illustratedembodiment, each UV CBAs 125 a-125 d illustratively includes a circuitboard 134, 137 comprising a connector tab 136, 138 to be received byrespective slots in the backplane CBA 130, and a carrying housing 141coupled to the circuit board. The carrying housing 141 illustrativelyincludes side edges to be received by the slots within the sides of thecavity of the housing 120.

The UV sterilization device 101 a-101 d illustratively includes apositive air pressure source 126 (e.g. an electrical fan) carried by thehousing and configured to create positive air pressure in the cavitywhen the door 121 is open. Helpfully, this causes an outflow of air whenthe door 121 is open and prevents particulate contaminants from enteringthe cavity, which can cause UV micro-shadowing during the disinfectionprocess. In some embodiments, the positive air pressure source 126illustratively includes an air filter (e.g. HEPA filter) to filterincoming air, preventing unintended ingestion of particulate matter fromthe positive air pressure source. In some embodiments, the housing 120comprises a plurality of adjustable feet on a bottom exterior surface.

The UV sterilization device 101 a-101 d may further comprise a sensor(e.g. Hall effect sensor) coupled to the controller 144 and configuredto detect a state of the door 121. Accordingly, when the door 121 isopened, the controller sends a status update to the server 111. The UVsterilization device 101 a-101 d illustratively includes a latch 133,and an electromechanical solenoid 132 cooperating therewith and coupledto the controller 144. The electromechanical solenoid 132 is configuredsecured the door 121. In embodiments where the UV sterilization device101 a-101 d has a keypad for coded entry, the controller 144 wouldinclude a user identifier in the status message, and would activate thesolenoid 132 to open the door 121. In these embodiments, the door 121 isbiased to open outward with a spring, for example. In some embodiments,the controller 144 may activate a sound indicator to alert a user towhen the door 121 is open for a period greater than a set timeoutperiod. In some embodiments, the door 121 may be totally automated andmotorized to open and close.

The UV sterilization device 101 a-101 d may further comprise a datacommunications bus coupled to the controller 144, and a plurality ofwired data ports (e.g. Ethernet) 129 coupled to the data communicationsbus. The UV sterilization device 101 a-101 d illustratively includes adisplay 122 coupled to the controller 144 and configured to presentoperational indicators to the user. In some embodiments, the keypad maybe integrated with the display 122. The UV sterilization device 101a-101 d illustratively includes a pair of handles 123 a-123 b on sidesof the housing 120 and configured to permit easy handling. The UVsterilization device 101 a-101 d illustratively includes a plurality ofindicators 124 a-124 b for indicating a charging status for the at leastone mobile wireless communications device. As shown, the door 121illustratively includes a plurality of light conduits coupled tointernal indicator LEDs.

The UV sterilization device 101 a-101 d illustratively includes a wiredport 129 (e.g. universal serial bus (USB) B type) configured to permitaccess to the controller 144 for firmware updates and maintenance, apower connector 128 configured to receive a power cord, and a powerswitch 127 configured to power toggle the device. The UV sterilizationdevice 101 a-101 d illustratively includes a light louver 140 configuredto permit air to flow out of cavity, but prevent UV radiation fromleaking out. The UV sterilization device 101 a-101 d illustrativelyincludes a plurality of wall mount openings 143 a-143 d configured toanchor the housing 120 to a wall.

The UV sterilization device 101 a-101 d illustratively includes an LEDdriver circuit configured to drive the UV LEDs with a stepped waveform,which provides for a constant operation current and a narrow emissionspectrum. This also provides for a long lifespan for the UV LEDs, on theorder of 5,000 hours. Moreover, the controller 144 is configured tomonitor the wear on the UV LEDs and alert the server 11 when replacementis needed. In particular, the wear on the UV LEDs is based upon a knowndegradation curve, as show in diagram 900 (FIG. 27).

Another aspect is directed to a method for operating a UV sterilizationdevice 101 a-101 d including a housing 120 defining a cavity therein,and having a door 121 configured to permit access to the cavity, and aplurality of trays 131 a-131 d carried within the cavity, each trayconfigured to receive at least one mobile wireless communicationsdevice. The UV sterilization device 101 a-101 d may include a pluralityof UV CBAs 125 a-125 d carried within the cavity respectively adjacentthe plurality of trays, each UV CBA comprising a plurality of LED UVsources 135 a-1351 configured to irradiate the at least one mobilewireless communications device with UV radiation. The UV sterilizationdevice 101 a-101 d may include a controller 144, and the method mayinclude operating the controller to selectively power at least one ofthe plurality of UV CBAs 125 a-125 d for disinfecting the at least onemobile wireless communications device.

Another aspect is directed to a method for operating a UV sterilizationsystem 100 comprising a server 111 comprising a processor and memorycoupled thereto, and a plurality of UV sterilization devices 101 a-101d. Each UV sterilization device 101 a-101 d may include a housing 120defining a cavity therein, and having a door 121 configured to permitaccess to the cavity, a plurality of trays 131 a-131 d carried withinthe cavity, each tray configured to receive at least one mobile wirelesscommunications device, and a plurality of UV CBAs 125 a-125 d carriedwithin the cavity respectively adjacent the plurality of trays. Each UVCBA 125 a-125 d may comprise a plurality of LED UV sources 135 a-1351configured to irradiate the at least one mobile wireless communicationsdevice with UV radiation. Each UV sterilization device 101 a-101 d maycomprise a transceiver 153 configured to communicate with the server111. The method may include operating a controller 144 to selectivelypower at least one of the plurality of UV CBAs 125 a-125 d fordisinfecting the at least one mobile wireless communications device, andsend at least one status message to the server 111. The method mayinclude operating the server 111 to provide a web interface portal foraccessing respective status information for the plurality of UVsterilization devices 101 a-101 d.

Advantageously, controller 144 is configured with a custom firmware.This is advantageous in the healthcare facility application for thefollowing reasons. Since prior approaches may leverage existingoperating systems (OSs) to cut costs and provide built-in functionality,they are rarely updated once put into use as medical devices, which canlead to critical unpatched vulnerabilities. This may cause securityrisks to local networks in healthcare facilities.

The custom firmware of the controller 144 addresses this issue, yetincludes a Transmission Control Protocol/Internet Protocol (TCP/IP)stack to communicate on typical networks. In particular, the controlleris configured to perform one-time handshakes with the server 111, theswitch 103, and/or the wireless base station 102. The controller isconfigured to provide for media access control address (MAC address)authentication, so that the handshake occurs only with proper devices.

Also, the UV sterilization device 101 a-101 d illustratively includes aplurality of image sensors configured to detect a number and location ofmobile wireless communications devices placed in the cavity.Advantageously, the controller 144 then activates needed antennas of theRF transmitter 115 to activate the respective RFID tag on the device.For example, the plurality of image sensors may each comprise an RGBcolor sensor, or a proximity sensor.

Referring now additionally to FIG. 2, another embodiment of the UVsterilization system 100 is now described. In this embodiment of the UVsterilization system 200, those elements already discussed above withrespect to FIG. 1 are incremented by 100 and most require no furtherdiscussion herein. This embodiment differs from the previous embodimentin that this UV sterilization system 200 illustratively includes theserver 211 as a cloud based service provided by Amazon Web Services. Theserver 211 illustratively includes a public accessible zone 212providing the web interface, a secured zone 212, and a firewall 214.

Referring now additionally to FIG. 3, another embodiment of the UVsterilization system 100 is now described. In this embodiment of the UVsterilization system 300, those elements already discussed above withrespect to FIG. 1 are incremented by 200 and most require no furtherdiscussion herein. This embodiment differs from the previous embodimentin that this UV sterilization system 300 illustratively includes theserver 311 as a virtual private cloud implementation. The server 311illustratively includes a plurality of modules 315-318.

Referring now to FIGS. 4-5, 21-24, diagrams 800, 805 illustratestructure of example embodiments of the UV sterilization system 100.Flowcharts 810, 840, 860, 880 show the logic of the controller 144 ofthe operation of the UV sterilization device 101 a-101 d.

Referring now to FIG. 25, the UV sterilization device 101 illustrativelyincludes the RF transmitter 115 coupled to the controller 144, thesolenoid driver circuit 146 coupled to the controller, the wired port129 coupled to the controller, a terminal port 147 also coupled to thecontroller, a display 122 coupled to the controller, a door sensor 142coupled to the controller, and a push button entry 143 coupled to thecontroller. The UV sterilization device 101 illustratively includes alight driver circuit 151 coupled to the controller 144, a LED boardidentification circuit 152 coupled to the controller, a wirelesstransceiver 153 coupled to the controller, a MAC/serial circuit 154coupled to the controller, and a device present sensor (e.g. imagesensor) coupled to the controller. The UV sterilization device 101illustratively includes a power supply 149, and a boost convertercircuit 150 coupled between the power supply and the light drivercircuit 151.

Referring now additionally to FIG. 26, another embodiment of the UVsterilization device 101 is now described. In this embodiment of the UVsterilization device 401, those elements already discussed above withrespect to FIG. 25 are incremented by 300 and most require no furtherdiscussion herein. This embodiment differs from the previous embodimentin that this UV sterilization device 401 illustratively includes firstand second boost converters 450 a-450 b.

Referring to FIGS. 28A-28M, patterns for circuit board layers for thebackplane CBA 130 in the UV sterilization device 101 a-101 d are shown.Referring to FIGS. 29A-29I, patterns for circuit board layers for thedisplay in the UV sterilization device 101 a-101 d are shown. Referringto FIGS. 30A-30B, patterns for circuit board layers for the UV CBAs 125a-125 d in the UV sterilization device 101 a-101 d are shown.

Referring now to FIGS. 31-40, circuit diagrams 905, 910, 915, 920, 925,930, 935, 940, 945, 950 illustrate several components from the UVsterilization device 101 a-101 d. Referring now to FIGS. 41-44B,diagrams 955, 960, 965, 970, 975 illustrate several components from theUV sterilization device 101 a-101 d.

Referring now additionally to FIG. 45, another embodiment of the UVsterilization system 100 is now described. In this embodiment of the UVsterilization system 1000, those elements already discussed above withrespect to FIG. 1 are incremented by 900 and most require no furtherdiscussion herein. This embodiment differs from the previous embodimentin that this UV sterilization system 1000 illustratively includes theserver 1011 having a memory 1059, and a processor 1060 coupled thereto,and the UV sterilization device 1001 a having a controller 1044, and amemory 1055 coupled thereto. The UV sterilization system 1000illustratively includes a mobile wireless communications device 1056having an RF ID tag 1057 therein, and a remote terminal 1058communication with the server 1011.

Many modifications and other embodiments of the present disclosure willcome to the mind of one skilled in the art having the benefit of theteachings presented in the foregoing descriptions and the associateddrawings. Therefore, it is understood that the present disclosure is notto be limited to the specific embodiments disclosed, and thatmodifications and embodiments are intended to be included within thescope of the appended claims.

1. An ultraviolet (UV) sterilization system comprising: a servercomprising a processor and memory coupled thereto; and at least one UVsterilization device comprising a housing defining a cavity therein, andhaving a door configured to permit access to the cavity, at least onetray carried within the cavity configured to receive at least onedevice, the at least one device including a radio frequency (RF)identification (ID) tag, a near field communications (NFC) deviceconfigured to communicate with the at least one device when external tothe cavity and unlock the door when the at least one device isauthorized, at least one UV circuit board assembly (CBA) carried withinthe cavity adjacent the at least one tray and comprising a plurality oflight emitting diode ultraviolet (LED UV) sources configured toirradiate the at least one device with UV radiation, a transceiverconfigured to communicate with the server, at least one RF transmitterconfigured to energize the RFID tag, and a controller coupled to the atleast one RF transmitter and configured to: identify the at least onedevice based upon an RF signal from the RFID tag, determine a positionand a number of the at least one device based upon the RF signal fromthe RFID tag, selectively power the at least one UV CBA for disinfectingthe at least one device based upon the identification of the at leastone device, and send at least one status message to the server.
 2. TheUV sterilization system of claim 1 wherein each tray comprises amaterial transparent to UV radiation.
 3. The UV sterilization system ofclaim 2 wherein the material comprises quartz.
 4. The UV sterilizationsystem of claim 1 wherein the controller is configured to selectivelypower the at least one UV CBA when the at least one device is detectedon a respective tray.
 5. The UV sterilization system of claim 1 whereinthe at least one UV sterilization device comprises a keypad carried onan external surface of the housing and coupled to the controller; andwherein the controller is configured to unlock the door based upon acode received from the keypad.
 6. The UV sterilization system of claim 1further comprising a wireless base station; and wherein the transceivercomprises a wireless transceiver coupled to the controller andconfigured to communicate with the wireless base station.
 7. The UVsterilization system of claim 1 wherein the at least one UVsterilization device comprises a positive air pressure source carried bythe housing and configured to create positive air pressure in the cavitywhen the door is open.
 8. The UV sterilization system of claim 1 whereinthe at least one UV CBA comprises a circuit board carrying the pluralityof LED UV sources.
 9. The UV sterilization system of claim 1 wherein theat least one UV sterilization device comprises a light louver carried bythe housing and configured to permit air to flow out of the cavity. 10.The UV sterilization system of claim 9 wherein the light louvercomprises a plurality of interdigitated arms.
 11. The UV sterilizationsystem of claim 1 wherein the plurality of LED UV sources is configuredto perform 360 degree irradiation of the at least one device.
 12. Anultraviolet (UV) sterilization device comprising: a housing defining acavity therein, and having a door configured to permit access to thecavity; at least one tray carried within the cavity and configured toreceive at least one device, the at least one device including a radiofrequency (RF) identification (ID) tag; a near field communications(NFC) device configured to communicate with the at least one device whenexternal to the cavity and unlock the door when the at least one deviceis authorized; at least one UV circuit board assembly (CBA) carriedwithin the cavity adjacent the at least one tray and comprising aplurality of light emitting diode ultraviolet (LED UV) sourcesconfigured to irradiate the at least one device with UV radiation; atleast one RF transmitter configured to energize the RFID tag; and acontroller coupled to the at least one RF transmitter and configured to:identify the at least one device based upon an RF signal from the RFIDtag, determine a position and a number of the at least one device basedupon the RF signal from the RFID tag, and selectively power the at leastone UV CBA for disinfecting the at least one device based upon theidentification of the at least one device.
 13. The UV sterilizationdevice of claim 12 wherein the at least one tray comprises a materialtransparent to UV radiation.
 14. The UV sterilization device of claim 13wherein the material comprises quartz.
 15. The UV sterilization deviceof claim 12 wherein the controller is configured to selectively powerthe at least one UV CBA when the at least one device is detected on arespective tray.
 16. The UV sterilization device of claim 12 furthercomprising a keypad carried on an external surface of the housing andcoupled to the controller; and wherein the controller is configured tounlock the door based upon a code received from the keypad.
 17. The UVsterilization device of claim 12 further comprising a transceiverconfigured to communicate with a server; and wherein the transceivercomprises a wireless transceiver coupled to the controller andconfigured to communicate with the server via a wireless base station.18. The UV sterilization device of claim 12 further comprising apositive air pressure source carried by the housing and configured tocreate positive air pressure in the cavity when the door is open. 19.The UV sterilization device of claim 12 wherein the at least one UV CBAcomprises a circuit board carrying the plurality of LED UV sources. 20.The UV sterilization device of claim 12 further comprising a lightlouver carried by the housing and configured to permit air to flow outof the cavity.